A child loves it when the piano tuner comes. His tuning forks have such a clear sound. The child doesn't know it, but that is because a tuning fork produces a pure tone which has

Question

Quizplus · Accepted Answer

A tuning fork produces a pure tone, which is characterized by a single sine wave, indicating it has one frequency and a consistent amplitude, unlike complex sounds that consist of multiple frequencies and amplitudes.  Only a small number of physical stimuli produce pure tones consisting of a single sine wave. A pure tone such as the tuning fork has only one frequency and one amplitude. Most sounds in the world are not pure, but are rather complex waves with a combination of frequencies and amplitudes.

A Child Loves It When the Piano Tuner Comes